S6 VROCEEDINGS OF THE NATIONAL MUSEUM. vouxx. 



Pnuiotiim ri'jrularly, and in tin* IVinalo coiiMiderably, CMilarging poster! 

 orly, with ilistinct (male) or iiMlistiiict (female) lat«Mal carinae on the 

 l>ro/,oija, which is twi«'e (male) or alm(»st twire (femah*) as lon|? as the 

 mrtazoiia, its sulci approximated and e<iually distinct, but not so dis- 

 tinct as that 8ei>aratin«,' the pro- and mcta/ona and, unlike it, not cut- 

 tinjjf the median carina, which is yet often suhohsolete on the prozona 

 and especially on its posterior half, jmrticularly in the female; expensed 

 portion of mesonotuin .ihout half (male) or hardly more than a fourth 

 (female) as lonjjf as the metanotum. Interspace between tlie meso- 

 aternal lol>es three fourths (male) or fully (female) as wide as the lobes 

 themselves, the metasternal interspace half (male) or threefourthN 

 (female) the width of the mesosternal int«"rspace. Fore and nn<ldle 

 femora ]»retty stronj»ly intiated and arcuate in tlu* male, the hind 

 femora stout and heavy, hardly if at all more than half as lon^; ajj^ain 

 as head and ])ronotuin combined, the hind tibiae stout. Abdomen 

 stout, taperin;; and then apically enlarjjed and considerably upturned 

 in the male; sujtraanal plate of male trian^fular, shorter than its basal 

 breadth, with a pair of broad, j;ently tunud ridj^es, which unite into a 

 single median rid<4:e, leaving between them in the basal half a shallow 

 sulcus; furcula wanting; cerci as long as the sui)raanal plate, sub 

 conical, slightly comi)ressed, tapering a little more ra|>i»lly in basal 

 than in apical half, rather blunt at tip, straight throughout: infracercal 

 plate much shorter than the supraanal, scarcely perceptible. 



Body biownish fuscous above much marked withclay yellow, beneath 

 almost wholly clay yellow, more or less infuscated in the fenmle. The 

 head is more or less obscure yellow, the vertex at summit brownish fus- 

 cous, limited at most to a narrow median and two eijually narrow sub 

 median streaks, the latter continued along the marginal ridges of the 

 fastigium down the sides of the frontal costa, but at the aj>ical third of 

 the fastigium more or less interrupted by or sutt'used with dull red; the 

 anteniuie are yellow at base, gradually passing into fuscous. On the 

 dorsum of the thorax and the *'"ont at least of the abdomen, the fuscous 

 is more or less obscurely punctate or flecked with yellowisli, and along 

 the median line of the abdomen there is a distinct.yellowish stripe begin 

 ning oil the meso- and metanota as a mere thread; the prevailing tint 

 of the lateral lobes of the pronotum is yellowish but there is a more or 

 less distinct blackish fuscous oblique bar on the prozona Just above tlie 

 middle, merging posteriorly in the general obscurity of the metazona; 

 there is a distinct broad blackish fuscous oblicjue baiul crossing the 

 meso- and metapleura, and the middle of the sides of the basal abdoini- 

 iial segments are piceoas. The fore and micUUe legs are fusco-luteous; 

 the hind femora yellowish, more or less obscured with fuscous and 

 spotted with fuscous on the inner upper face and the outer face, which 

 is generally almost black along its upper half; hmd tibiae and tarsi 

 coral red, brighter in the male than in the female, the external series 

 of spines yellow with black apices. The sides of the supraanal plate of 



